docs: def get_kinetic_folding_rate(self, secstruct, at_temp=None):
          """Run the FOLD-RATE web server to calculate the kinetic folding rate given an amino acid sequence and its
          structural classficiation (alpha/beta/mixed)
  
          Stores statistics in the ``annotations`` attribute, under the key `kinetic_folding_rate_<TEMP>-foldrate`.
  
          See :func:`ssbio.protein.sequence.properties.kinetic_folding_rate.get_foldrate` for instructions and details.
  
          """
  
          import ssbio.protein.sequence.properties.kinetic_folding_rate as kfr
  
          rate = kfr.get_foldrate(seq=self, secstruct=secstruct)
          self.annotations['kinetic_folding_rate_37.0_C-foldrate'] = rate
  
          if at_temp:
              new_rate = kfr.get_foldrate_at_temp(ref_rate=rate, new_temp=at_temp)
              self.annotations['kinetic_folding_rate_{}_C-foldrate'.format(at_temp)] = new_rate